* {
    scrollbar-color: rgba(31, 31, 31, 0.5) transparent;
    /* 滑块颜色  滚动条背景颜色 */
    scrollbar-width: thin;
    /* 滚动条宽度有三种：thin、auto、none */
}

*::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

*::-webkit-scrollbar-button {
    display: none;
}

*::-webkit-scrollbar-track {
    background: transparent;
}

*::-webkit-scrollbar-track-piece {
    background-color: transparent;
}

*::-webkit-scrollbar-corner {
    display: none;
}

*::-webkit-resizer {
    display: none;
}